.content-section {
    background: url('../image/pro_bgc.png') no-repeat center center;
    background-size: 100% 100%;
    width: 100%;
    height: 920px;
}

.pro-container {
    /* width: 1200px;
    margin: 0 auto; */
}

.pro-title-wrapper h3 {
    font-size: 48px;
    font-weight: bold;
    text-align: center;
    padding-top: 154px;
    background-color: transparent;
    color: #ffffff;
}

.pro-title-wrapper .pro-sub-t {
    color: #ddd;
    text-align: center;
    font-size: 24px;
    margin-top: 10px;
}

.pro-content-item {
    /* display: flex; */
    margin: 0 auto;
    width: 1400px;
    margin-top: 58px;
}

.pro-item {
    /* width: 288px; */
    /* width: 20vw; */
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    position: relative;
    -webkit-transition: all 200;
    -o-transition: all 200;
    transition: all 200;
    /* height: 442px; */
    padding: 0 10px;
    width: 25%;
}

.pro-item:hover {
    cursor: pointer;
}

.pro-b-a {
    display: block;
    color: #fff;
    margin: 0 14px;
    text-align: center;
    font-size: 18px;
    /* font-size: 1.125vw; */
    line-height: 44px;
    border-radius: 25px;
    background-color: #5285bd;
    margin-top: 30px;
    margin: 0;
    position: absolute;
    bottom: 20px;
    left: 10px;
    right: 10px;
}

.pro-b-a-2 {
    background-color: #479fcd;
}

.pro-b-a-3 {
    background-color: #9072bd;
}

.pro-b-a-4 {
    background-color: #5fd1b5;
}

.pro-itme-b-firstp {
    font-size: 36px;
    /* font-size: 2.25vw; */
}

.pro-itme-b-secp {
    font-size: 18px;
    /* font-size: 1.125vw; */
    margin-top: 10px;
    padding: 0 15px;
}

.pos-itme-b {
    color: #fff;
    text-align: center;
    height: 100%;
    position: relative;
}

.pro-item-wrap-1 {
    color: #ffffff;
}

.pro-item-1 {
    background-color: #2766ac;
}

.pro-item-2 {
    background-color: #1987c0;
}

.pro-item-3 {
    background-color: #744fad;
}

.pro-item-4 {
    background-color: #37c6a3;
}

.pro-item:hover .pro-item-b {
    height: 266px;
}

.pro-item-b {
    padding-bottom: 22px;
    padding-top: 50px;
    overflow: hidden;
    z-index: 111;
    position: absolute;
    width: 100%;
    left: 0;
    bottom: -236px;
    height: 236px;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
    -webkit-transition: all .3s;
    -o-transition: all .3s;
    transition: all .3s;
}

.pro-item-t {
    /* height: 206px; */
    -webkit-transition: all .3;
    -o-transition: all .3;
    transition: all .3;
    z-index: 1;
    overflow: hidden;
    /* width: 288px; */
}

.pro-item-t img {
    width: 100%;
    height: 100%;
}

.flex-wrap {
    display: -webkit-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-box-pack: justify;
    -ms-flex-pack: justify;
    -webkit-justify-content: space-between;
    justify-content: space-between;
    margin: 0 -10px;
}

.item-a {
    display: block;
    position: relative;
    /* height: 100%; */
}


/* @media (min-width: 1900px) {
  .pro-container {
    width: 100%;
    padding: 0 9.3%;
    box-sizing: border-box;
  }

  .pro-item {
    // width: 373px;
    // height: 506px;
  }

  .pro-itme-b-secp {
    // font-size: 22px;
  }

  .pro-item-t {
    // height: 270px;
    width: 100%;
  }
} */


/*
@media (min-width: 1700px) and (max-width: 1899px) {
  .pro-container {
    // width: 100%;
    padding: 0 5%;
    box-sizing: border-box;
  }

  .pro-item {
    // width: 373px;
    height: 506px;
  }
  .pro-itme-b-secp {
    // font-size: 22px;
  }

  .pro-item-t {
    height: 270px;
    width: 100%;
  }
}
*/


/* DEVICE ADAPTE */


/* 默认适配放最上面 */


/* 超大屏以上 */

@media screen and (max-width:1920px) {
    .pro-content-item {
        width: 1560px;
    }
    .pro-title-wrapper h3 {
        font-size: 48px;
    }
    .pro-title-wrapper .pro-sub-t {
        font-size: 24px;
    }
    .pro-item-b {
        padding-top: 35px;
        height: 236px;
        bottom: -236px;
    }
    .pro-item:hover .pro-item-b {
        height: 266px;
    }
    .pro-itme-b-firstp {
        font-size: 36px;
    }
    .pro-itme-b-secp {
        font-size: 18px;
        padding: 0;
    }
    .pro-b-a {
        font-size: 18px;
        line-height: 44px;
        bottom: 10px;
    }
}


/* 笔记本 */

@media screen and (max-width:1600px) {
    .pro-content-item {
        width: 1300px;
    }
    .content-section {
        height: 800px;
    }
    .pro-title-wrapper h3 {
        font-size: 44px;
    }
    .pro-title-wrapper .pro-sub-t {
        font-size: 21px;
    }
    .pro-item-b {
        height: 195px;
        bottom: -195px;
        padding: 26px 0 16px;
    }
    .pro-item:hover .pro-item-b {
        height: 220px;
    }
    .pro-itme-b-firstp {
        font-size: 30px;
    }
    .pro-itme-b-secp {
        font-size: 16px;
        padding: 0 15px;
    }
    .pro-b-a {
        font-size: 16px;
        line-height: 40px;
    }
}


/* 小屏 */

@media screen and (max-width:1280px) {
    .pro-content-item {
        width: 1040px;
    }
    .content-section {
        height: 700px;
    }
    .pro-title-wrapper h3 {
        font-size: 40px;
    }
    .pro-title-wrapper .pro-sub-t {
        font-size: 18px;
    }
    .pro-item-b {
        height: 155px;
        bottom: -155px;
        padding: 20px 0 13px;
    }
    .pro-item:hover .pro-item-b {
        height: 180px;
    }
    .pro-itme-b-firstp {
        font-size: 24px;
    }
    .pro-itme-b-secp {
        font-size: 14px;
        margin-top: 0;
        padding: 0;
    }
    .pro-b-a {
        font-size: 14px;
        line-height: 36px;
    }
}


/* 平板 */

@media screen and (max-device-width:1024px) {
    .content-section {
        height: 680px;
    }
    .pro-content-item {
        width: 100%;
        padding: 0 25px;
        -webkit-box-sizing: border-box;
        box-sizing: border-box;
    }
    .pro-item-b {
        height: 143px;
        bottom: -143px;
        padding: 19px 0 12px;
    }
    .pro-item:hover .pro-item-b {
        height: 143px;
    }
}


/* 手机 */

@media screen and (max-device-width:480px) {
    .content-section {
        height: auto;
        padding-bottom: 10px;
        background-size: cover;
    }
    .pro-title-wrapper h3 {
        font-size: 28px;
        padding-top: 120px;
    }
    .pro-title-wrapper .pro-sub-t {
        font-size: 16px;
        padding: 0 15px;
        margin-top: 5px;
    }
    .pro-content-item {
        margin-top: 25px;
        padding: 0 15px;
    }
    .flex-wrap {
        display: block;
        margin: 0;
    }
    .item-a {
        padding-bottom: 80px;
    }
    .pro-item {
        width: 100%;
        height: auto;
        margin-bottom: 25px;
        padding: 0;
    }
    .pro-item-b {
        padding: 25px 0;
        z-index: auto;
        height: auto;
        bottom: 0;
    }
    .pro-itme-b-firstp {
        font-size: 24px;
    }
    .pro-itme-b-secp {
        font-size: 16px;
        margin-top: 0;
    }
    .pro-b-a {
        margin: 15px auto 0;
        line-height: 30px;
        font-size: 14px;
        width: 80%;
        position: static;
    }
}